A television rating agency produces the ratings of television shows by asking a random sample of about 4,400 households with TV sets what shows they watch. The rating for a show is the proportion (or percentage) of all households in the sample that watch the show. What is the purpose of a television rating agency?
1) To determine the popularity of television shows
2) To collect data on household TV viewing habits
3) To provide information to advertisers
4) To help TV networks make programming decisions